| Téléchargement | - Voir la version finale : Electrochemical promotion of bimetallic palladium‐cobalt nano‐catalysts for complete methane oxidation (PDF, 1.0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1002/cctc.202301363 |
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| Auteur | Rechercher : Ahledel, NajmehIdentifiant ORCID : https://orcid.org/0000-0002-7255-4796; Rechercher : Saini, Komalpreet Kaur; Rechercher : Couillard, Martin1; Rechercher : Baranova, Elena A.Identifiant ORCID : https://orcid.org/0000-0001-5993-2740 |
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| Affiliation | - Conseil national de recherches du Canada. Innovations dans les énergies propres
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| Format | Texte, Article |
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| Sujet | electrochemical promotion of the catalysis (EPOC); complete methane oxidation; yttria-stabilized zirconia (YSZ); palladium-cobalt nanoparticles; heterogeneous catalysis |
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| Résumé | The catalytic activity and electrochemical promotion of catalysis (EPOC) of the bimetallic Pd−Co nanoparticles (10 nm) deposited on yttria-stabilized zirconia were investigated for complete methane oxidation. The reaction was conducted under open-circuit and under polarization in a temperature range of 320–400 °C in reducing, stoichiometric, and oxidizing conditions. The catalytic activity of the catalyst nanoparticles increased to 40 % upon positive polarization in all gaseous compositions. A comparison of three reaction conditions revealed that the highest reaction rate increase (enhancement ratio, ρ=1.4) occurs under reducing conditions. The reaction rate increased upon anodic polarization, resulting in non-Faradaic electrochemical modification of catalytic activity (Λ≫1) in reducing and oxidizing conditions and Faradaic or electrochemical enhancement (Λ<1) in stoichiometric reaction condition. This work demonstrates that the formation of different Pd and Co oxide phases can be accurately controlled by electrochemical stimuli and, in reducing conditions, result in pseudo-capacitor behaviour. |
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| Date de publication | 2024-01-08 |
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| Maison d’édition | Wiley |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 53aa8fbd-eaa5-4066-9bbf-e992e8986134 |
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| Enregistrement créé | 2024-06-18 |
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| Enregistrement modifié | 2024-06-18 |
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